Number of n X 5 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.
A208634
Number of n X 5 0..1 arrays with new values 0..1 introduced in row major order and no element equal to more than one of its immediate leftward or upward or right-upward antidiagonal neighbors.
Terms
- a(0) =16a(1) =47a(2) =150a(3) =494a(4) =1652a(5) =5572a(6) =18888a(7) =64216a(8) =218704a(9) =745616a(10) =2543520a(11) =8679776a(12) =29625920a(13) =101131840a(14) =345250944a(15) =1178690944a(16) =4024163584a(17) =13739075840a(18) =46907582976a(19) =160151393792a(20) =546788836352
External references
- oeis: A208634